Heating system for automobiles.



S. 0. DE-ORLOW. HEATING SYSTEM foe AUTOMOBILES.'

APPLICATION FILED APB.2. i917.

Patented Sept. 17, 1918.

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STEPHEN 0. DE ORLOW, OF CHICAGO, ILLINOIS, ASSIGNOR T WOODS lllllIOTOIlx, VEHICLE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

HEATING SYSTEM ron AUTOMOBILES.

Lacasse.

Specification of Letters Patent.

Patented sept. 17, 191s;

Application med Aprn a, 1917. serial No. 159,254.

To. all whom it may concern:

, useful Improvement in Heating Systems for Automobiles, of which the following isa full, clear, concise, and exact description,`

reference being had to the accompanying drawings, forminga part of this specifica- -tion.

My invention relates toheating systems for automobiles and more particularly to heating systems employed in connection with water cooled internal combustion engines for the prevention of freezing of the cooling fluid used for cooling the engine cylinders.

AIt is one of the objects of the 'present invention to provide a heating system which not only heats and circulates the cooling Huid or water contained withinA the water jackets provided on the. internal combustion engine, while the automobile is standing idle on a street for several hours, or when stored over night in a cold` garage, butwhich also Serves to heat the incoming gases of the engine so that complete volatilization of the gases occurs even though the engine has been standing idle and permitted to cool to some extent.

A` further object of the present invention is the provision of an element or insert arranged to be inserted between a carbureter and the intake manifold of an internal combustion engine, the element being provided with a water jacket, arranged to receive heated water circulating through the internal combustion engine, and containing a heat generating device, preferably electrical,

.which serves to heat the incoming gases and which serves to heat the fluid contained within the insert. These and other objects of my invention will be more clearly brought out in conlooking in the direction indicated by 'the arrows;

Fig. 4 is a longitudinal cross sectional view taken along the line 4-4 of Fig. 2 and looking in the direction indicated by the arrows; and

Fig. 5 is a diagrammatic circuit drawing showing the electric circuit employed in connection with the heating device illustrated in Figs. 2, 3, and 4.

Similar characters of reference refer to similar parts throughout the several views.

Referring'rst to Fig. 1, 6 illustrates the automobile chassis upon which is mounted the internal combustion engine 7 The internal combustion engine is provided with the usual intake manifold 8, the outer end of which carries a flange 9 usually arranged to be attached to a carbureter. The flange 9' instead of being attached to a carbureter in the usual way is attached to the heating element illustrated at 10, the latter beingprovided with apertures 11 and 12-for the reception of bolts -13 and 14 which serve to connect the element 10 with the intake manifold. The lower end of the member 10 carries the bolts 15 and 16 arranged/to attach the carbureter 17 tothe heating element.

The member 10 is provided with a longitudinal bore, as shown at 181, which-affords communication between the carbureter and the intake manifold so that in passing from the vcarbureter to the engine the gases mustv ductor 24 being attached to the upper end of the coil, the conductor 25 to the lower, and the conductor 26 tothe coil at a point intermediatev its ends.

The internal combustion engine 7 is provided with the usual water jackets in which a cooling liquid,such as water, is arranged to circulate. The upper end of the water jacket or jackets provided on the en ine 7 is connected by means of the conduit 2 with the upper end of the radiator 28. vThe lowei` are operating a current is sent through the end of the radiator connects with the conduit 29 running to the center of a centrifugal pump 30 arranged to pumpthe water from the radiator through a conduit 31 into the lower end or ends of the internal combus- 'tion engine water jackets. The conduit 20 extending from the upper end of the water jacket provided in the heating element connects with the engine water jacke-t as shown at 201 in'Fig. 1. The conduit 22 extends from the heating element tothe engine water jacket as shown at 221V below the point of connection 201 of the conduit 20.`

If we assume the engine 7 to be operating and that no current is traversing the coil 23 of the heating element, water will be circulated from the radiator through the water jacket of the engine and back to the radiator in the usual way. At the same time a second or auxiliary water circuit will be provided through the conduit 22,-heating element l() and conduit 20. As a result of circulating 'the heated water through the element l0 the incoming gases are heated and thoroughly volatilized. If when the engine and pump heating coil 23 the element 10 will be heated to a greater extent and thus. insure the volatilization of thegases.

When the engine is standing idle in a cold stre-et or garage a current is sent through the heating coil 23 so as to heat lthe water the radiator.

contained within the water jacket of the element 10. This produces a fiow of water from the bottom of the radiator through the conduit 3l into the engine water jacket, through the conduit 22, heating element 10, the conduit 20, the en ine water jacket and through the conduit 2 to the upper end of Freezing of water in the radiator and in the water jacket is thereby prevented. i

In Fig. 5 I have illustrated at 23 a diagrammatie representation of vthe heating coil. One end of the coil 23 is-connected by means of the conductor 32 with one side of a battery 33, the other side of the battery being connected by means of a conductor 34 with a switch blade 35. The switch blade 35 is arranged to engage either one of the two contact points 36 and 37, the contact point 36 being electrically connected with one end of the coil 23 and the contact point 37 being connected by means of the conductor 26 with the coil at a point intermediate its ends. lVhen the coil` 23 is to be used for starting theengine the switch 35 is moved into contact with the point 37 so that an electric circuit is provided through onlya portion of the heating coil 23 thus generating a relatively great amount of heat. lVhen the automobile is left standing 1n the cold the switch35 is moved into contact with the point 36 so that the current traverses the entire coil and thus creates a less amount of heat, but an amount which is suiicient to prevent the water from freezing. If the automobile is standing in a garage and it is desire-d to use the garage lighting circuit instead of the battery an auxiliary circuit is employed, as shown at 38. This circuit contains a socket or plug 39, arranged to be attached to the garage lighting circuit, and a pair of coils, one an induction coil 40, and the other a resistance coil 41, either of which can be connected in the circuit by means of the switch 42. Either one of the coils 40 and 41is employed, depending upon the current traversing the auxiliary circuit 38. v A

Having thus described my invention what l claim as new and desire to secure by Let coming gases and for heating a fluid circulating through the jackets and radiator.

2. The combination of an internal combustion engine having a water jacket, a radiator, a water jacket for the intake manifold of the engine, piping affording communieation between the radiator and water jackets, and an electric heat generating ele' ment at the intake manifold for directly heating the incoming gases and for heating a iuid circulating through the jackets and radiator.

3. A heater consisting of a tubular member arranged to be inserted between a carbureter and the intake manifold of an internal combustion engine and having a water jacket to receive a Huid for heating the gases passing through the member from the carbureter to the engine cylinder, and a heat generating element for heating the member and thus the fluid contained Within the water jacket thereof.

4. A heater consisting of a tubular member arranged to be inserted between a carbureter and the intake manifold of an internal combustion engine and having a Water jacket to receive a fiuid for heating the gases passing through the member from the ca-rbureter to the engine cylinder, and an electric coil carried by the member for heating the same and thus the fluid contained .within the water jacket thereof.

gases are heated before reaching the engine cylinder, and a heat generating element located so as to heat both the incoming gases and the water circulated in proximity to the path of the incoming gases. j

6. In an automobile the provision of a Water cooled internal combustion engine, a radiator, means for circulating water heated by the engine in .proximity to the path of incoming gases of the engine whereby the gases are heated before reaching the engine cylinder, and an electrical heat generating element located so as to heat both the incoming gases and the water circulated in proximity to the path of the incoming gases.

7. In an automobile power plant the provision of an internal combustion engine having a water jacket arranged to receive a cooling fluid,-a radiator having its upper end communicating with the upper end of the jacket and its lower end communicating with the lower end of the water jacket, a pump interposed between the lower end of the radiator and the lower end of the water jacket for pumping the cooled fluid from the radiator to the engine Water jacket, a water jacketaround the intake manifold of the engine, piping extending from the top of said intake manifold water jacket to the engine water jacket, piping extending from the lower end of said intake manifold water jacket to the engine water jacket and to a point below the connection of the first mentioned piping and engine Water jacket, and an electrical heat generating element at the intake manifold of the engine for heating the incoming gases and for heating the Huid in the intake manifold water jacket.

8. A. heater for the intake of an internal combustion engine comprising a water jacketed part and an associated electric heating element disposed in heat transmitting relation with the wall of said water jacketed part for heating both the intake pipe and the contents of the water jacket, said jacket being arranged for connection with the. water circulating system of the engine.

9. An article of manufacture comprising a member having a bore therethrough, a water jacket therefor having ingress and egress openings and an electrical heating element disposed directly to heat the walls of said bore and the contents of said water jacket.

10. The combination with an internal combustion engine having a water jacket and an intake manifold, of a heater having one side disposed in heat transmitting relation with gases passing through said manifold, and means disposed onthe other side of said heater for absorbing the heat radiated from that side of the heater and conducting it to said water jacket.

In witness whereof I hereunto subscribe my name this 19th day of March, A. D.

1917. STEPHEN O. DE ORLOVV.

Witnesses:

C. J. BLAKESLEE,

R. S. FEND. 

